Brain fog (slowed thinking, poor memory and difficulty focusing) is not always caused by stress or a busy routine. Common causes include poor sleep or sleep apnea, vitamin B12 and D deficiencies, hormonal changes such as menopause, and certain medicines. It can also follow viral infections like COVID-19 and may be linked to conditions such as diabetes, hypertension, depression and anxiety. A balanced diet, regular exercise, good hydration, quality sleep and keeping the brain active can help. Brain fog is a symptom, not a diagnosis, so persistent symptoms should be checked by a doctor.
